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Implement the CDROMREADAUDIO ioctl.

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This commit is contained in:
Marcel Moolenaar 2002-10-19 21:11:43 +00:00
parent bc5245d94c
commit 60d04085cf
1 changed files with 37 additions and 1 deletions
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38
sys/compat/linux/linux_ioctl.c
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@ -932,6 +932,13 @@ struct linux_cdrom_subchnl
union linux_cdrom_addr cdsc_reladdr;
};
struct l_cdrom_read_audio {
union linux_cdrom_addr addr;
u_char addr_format;
l_int nframes;
u_char *buf;
};
struct l_dvd_layer {
u_char book_version:4;
u_char book_type:4;
@ -1069,6 +1076,18 @@ bsd_to_linux_msf_lba(u_char af, union msf_lba *bp, union linux_cdrom_addr *lp)
}
}
static void
linux_to_bsd_msf_lba(u_char af, union linux_cdrom_addr *lp, union msf_lba *bp)
{
if (af == CD_LBA_FORMAT)
bp->lba = lp->lba;
else {
bp->msf.minute = lp->msf.minute;
bp->msf.second = lp->msf.second;
bp->msf.frame = lp->msf.frame;
}
}
static void
set_linux_cdrom_addr(union linux_cdrom_addr *addr, int format, int lba)
{
@ -1377,7 +1396,24 @@ linux_ioctl_cdrom(struct thread *td, struct linux_ioctl_args *args)
/* LINUX_CDROMREADMODE2 */
/* LINUX_CDROMREADMODE1 */
/* LINUX_CDROMREADAUDIO */
case LINUX_CDROMREADAUDIO: {
struct l_cdrom_read_audio lra;
struct ioc_read_audio bra;
error = copyin((caddr_t)args->arg, &lra, sizeof(lra));
if (error)
break;
bra.address_format = lra.addr_format;
linux_to_bsd_msf_lba(bra.address_format, &lra.addr,
&bra.address);
bra.nframes = lra.nframes;
bra.buffer = lra.buf;
error = fo_ioctl(fp, CDIOCREADAUDIO, (caddr_t)&bra,
td->td_ucred, td);
break;
}
/* LINUX_CDROMEJECT_SW */
/* LINUX_CDROMMULTISESSION */
/* LINUX_CDROM_GET_UPC */